26756940 has 144 divisors (see below), whose sum is σ = 91929600. Its totient is φ = 5781888.

The previous prime is 26756923. The next prime is 26756953. The reversal of 26756940 is 4965762.

26756940 = 483² + 484² + ... + 577².

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 55621 + ... + 56099.

It is an arithmetic number, because the mean of its divisors is an integer number (638400).

Almost surely, 2^26756940 is an apocalyptic number.

26756940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26756940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45964800).

26756940 is an abundant number, since it is smaller than the sum of its proper divisors (65172660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26756940 is a wasteful number, since it uses less digits than its factorization.

26756940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524 (or 515 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 26756940 is about 5172.7110880079. The cubic root of 26756940 is about 299.0970628527.

The spelling of 26756940 in words is "twenty-six million, seven hundred fifty-six thousand, nine hundred forty".